Tooltip demo: Use position option in tracking demo.

Author: scottgonzalez

demos/tooltip/tracking.html

@@ -19,14 +19,16 @@
 	<script>
 	$(function() {
 		$( ".demo" ).tooltip({
+			position: {
+				my: "left+25 center",
+				at: "center"
+			},
 			open: function( event ) {
-				var tooltip = $( ".ui-tooltip" );
+				var tooltip = $( ".ui-tooltip" ),
+					positionOption = $( this ).tooltip( "option", "position" );
 				function position( event ) {
-					tooltip.position({
-						my: "left+25 center",
-						at: "right+25 center",
-						of: event
-					});
+					positionOption.of = event;
+					tooltip.position( positionOption );
 				}
 				$( document ).bind( "mousemove.tooltip-position", position );
 				// trigger once to override element-relative positioning